yii\console\controllers\HelpController::getSubCommandHelp PHP Method

    protected function getSubCommandHelp($controller, $actionID)
    {
        $action = $controller->createAction($actionID);
        if ($action === null) {
            $name = $this->ansiFormat(rtrim($controller->getUniqueId() . '/' . $actionID, '/'), Console::FG_YELLOW);
            throw new Exception("No help for unknown sub-command \"{$name}\".");
        }
        $description = $controller->getActionHelp($action);
        if ($description !== '') {
            $this->stdout("\nDESCRIPTION\n", Console::BOLD);
            $this->stdout("\n{$description}\n\n");
        }
        $this->stdout("\nUSAGE\n\n", Console::BOLD);
        $scriptName = $this->getScriptName();
        if ($action->id === $controller->defaultAction) {
            $this->stdout($scriptName . ' ' . $this->ansiFormat($controller->getUniqueId(), Console::FG_YELLOW));
        } else {
            $this->stdout($scriptName . ' ' . $this->ansiFormat($action->getUniqueId(), Console::FG_YELLOW));
        }
        $args = $controller->getActionArgsHelp($action);
        foreach ($args as $name => $arg) {
            if ($arg['required']) {
                $this->stdout(' <' . $name . '>', Console::FG_CYAN);
            } else {
                $this->stdout(' [' . $name . ']', Console::FG_CYAN);
            }
        }
        $options = $controller->getActionOptionsHelp($action);
        $options[\yii\console\Application::OPTION_APPCONFIG] = ['type' => 'string', 'default' => null, 'comment' => "custom application configuration file path.\nIf not set, default application configuration is used."];
        ksort($options);
        if (!empty($options)) {
            $this->stdout(' [...options...]', Console::FG_RED);
        }
        $this->stdout("\n\n");
        if (!empty($args)) {
            foreach ($args as $name => $arg) {
                $this->stdout($this->formatOptionHelp('- ' . $this->ansiFormat($name, Console::FG_CYAN), $arg['required'], $arg['type'], $arg['default'], $arg['comment']) . "\n\n");
            }
        }
        if (!empty($options)) {
            $this->stdout("\nOPTIONS\n\n", Console::BOLD);
            foreach ($options as $name => $option) {
                $this->stdout($this->formatOptionHelp($this->ansiFormat('--' . $name . $this->formatOptionAliases($controller, $name), Console::FG_RED, empty($option['required']) ? Console::FG_RED : Console::BOLD), !empty($option['required']), $option['type'], $option['default'], $option['comment']) . "\n\n");
            }
        }
    }

 /**
  * Displays the detailed information of a command action.
  * @param Controller $controller the controller instance
  * @param string $actionID action ID
  * @throws Exception if the action does not exist
  */
 protected function getSubCommandHelp($controller, $actionID)
 {
     // Fallback ot default implementation if not dealing with out module's commands.
     if (!$controller instanceof ApiController) {
         parent::getSubCommandHelp($controller, $actionID);
         return;
     }
     $action = $controller->createAction($actionID);
     if ($action === null) {
         $name = $this->ansiFormat(rtrim($controller->getUniqueId() . '/' . $actionID, '/'), Console::FG_YELLOW);
         throw new Exception("No help for unknown sub-command \"{$name}\".");
     }
     $description = $controller->getActionHelp($action);
     if ($description !== '') {
         $this->stdout("\nDESCRIPTION\n", Console::BOLD);
         $this->stdout("\n{$description}\n\n");
     }
     $this->stdout("\nUSAGE\n\n", Console::BOLD);
     $scriptName = $this->getScriptName();
     if ($action->id === $controller->defaultAction) {
         $this->stdout($scriptName . ' ' . $this->ansiFormat($controller->getUniqueId(), Console::FG_YELLOW));
     } else {
         $this->stdout($scriptName . ' ' . $this->ansiFormat($action->getUniqueId(), Console::FG_YELLOW));
     }
     $args = $controller->getActionArgsHelp($action);
     foreach ($args as $name => $arg) {
         if ($arg['required']) {
             $this->stdout(' <' . $name . '>', Console::FG_CYAN);
         } else {
             $this->stdout(' [' . $name . ']', Console::FG_CYAN);
         }
     }
     $options = $controller->getActionOptionsHelp($action);
     if (!empty($options)) {
         $this->stdout(' [--optionName=optionValue ...]', Console::FG_RED);
     }
     $this->stdout("\n\n");
     if (!empty($args)) {
         foreach ($args as $name => $arg) {
             $this->stdout($this->formatOptionHelp('- ' . $this->ansiFormat($name, Console::FG_CYAN), $arg['required'], $arg['type'], $arg['default'], $arg['comment']) . "\n\n");
         }
     }
     if (!empty($options)) {
         $this->stdout("\nOPTIONS\n\n", Console::BOLD);
         foreach ($options as $name => $option) {
             $this->stdout($this->formatOptionHelp($this->ansiFormat('--' . $name, Console::FG_RED, empty($option['required']) ? Console::FG_RED : Console::BOLD), !empty($option['required']), $option['type'], $option['default'], $option['comment']) . "\n\n");
         }
     }
     $this->stdout($controller->getGlobalOptionsHelp());
 }